package com.example.lin.myapplication;

import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

/**
 * A fragment representing a list of Items.
 * <p/>
 * Activities containing this fragment MUST implement the {@link OnListFragmentInteractionListener}
 * interface.
 */
public class VocabularyItemFragment extends Fragment {

    // TODO: Customize parameter argument names
    private static final String ARG_COLUMN_COUNT = "column-count";
    // TODO: Customize parameters
    private int mColumnCount = 1;
    private OnListFragmentInteractionListener mListener;

    /**
     * Mandatory empty constructor for the fragment manager to instantiate the
     * fragment (e.g. upon screen orientation changes).
     */
    public VocabularyItemFragment() {
    }

    // TODO: Customize parameter initialization
    @SuppressWarnings("unused")
            public static VocabularyItemFragment newInstance(int columnCount) {
                VocabularyItemFragment fragment = new VocabularyItemFragment();
                Bundle args = new Bundle();
                args.putInt(ARG_COLUMN_COUNT, columnCount);
                fragment.setArguments(args);
                return fragment;
            }

            @Override
            public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);

                if (getArguments() != null) {
                    mColumnCount = getArguments().getInt(ARG_COLUMN_COUNT);
                }
            }

            @Override
            public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
                View view = inflater.inflate(R.layout.fragment_item_list, container, false);

                // Set the adapter
                if (view instanceof RecyclerView) {
                    Context context = view.getContext();
                    RecyclerView recyclerView = (RecyclerView) view;
                    if (mColumnCount <= 1) {
                        recyclerView.setLayoutManager(new LinearLayoutManager(context));
                    } else {
                        recyclerView.setLayoutManager(new GridLayoutManager(context, mColumnCount));
                    }
                    recyclerView.setAdapter(new VocabularyItemRecyclerViewAdapter(
                            WordLib.get(getActivity()).getWordList(),mListener));
        }
        return view;
    }


    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        if (context instanceof OnListFragmentInteractionListener) {
            mListener = (OnListFragmentInteractionListener) context;
        } else {
            throw new RuntimeException(context.toString() +
                    " must implement OnListFragmentInteractionListener");
        }
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mListener = null;
    }

    /**
     * This interface must be implemented by activities that contain this
     * fragment to allow an interaction in this fragment to be communicated
     * to the activity and potentially other fragments contained in that
     * activity.
     * <p/>
     * See the Android Training lesson <a href=
     * "http://developer.android.com/training/basics/fraginformationments/communicating.html"
     * >Communicating with Other Fragments</a> for more .
     */
    public interface OnListFragmentInteractionListener {
        // TODO: Update argument type and name
        void onListFragmentInteraction(WordEntity item);
    }


}
